Skip the Antibacterial SoapThere's absolutely no reason to buy antibacterial soaps, according to the American Medical Association. While close to 50 percent of soaps sold in the States contain antimicrobial agents, the AMA claims there's no solid scientific proof that these soaps are better at preventing infection than regular soap. In fact, the group argues that antibacterial soaps may be doing more harm than good—by making bacteria stronger and more resistant to existing germ killers.

Use the First StallAfter analyzing 51 public restrooms, experts found that the stall closest to the restroom door consistently had the lowest bacteria levels (and the most toilet paper!). The first stall probably sees less traffic because it's near the door and people want privacy. And when you're finished, stand before you flush. When toilets are flushed, a fine mist of water containing contagious bacteria sprays up. You can catch intestinal bugs and hepatitis from it.